Double wall glass



FIG. 1 is a perspective view of the double wall glass showing my design thereof;

FIG. 2 is a front view thereof, the back view being identical thereto;

FIG. 3 is a right view thereof, the left view being identical thereto;

FIG. 4 is a top view thereof; and

FIG. 5 is a bottom view thereof; and,

FIG. 6 is a front sectional view thereof taken along line 6—6 of FIG. 4. 

The ornamental design for a double wall glass, as shown and described. 